Back washing brush



FIG. 1 is an exploded front, top and side perspective view of the back washing brush showing my new design;

FIG. 2 is an assembled front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof, the bottom being a mirror image; and,

FIG. 5 is a side elevational view thereof, the opposite side being a mirror image. 

The ornamental design for a back washing brush, as shown and described. 